Window-sash lifting and locking appliance.



- T.- E. CARTER. WINDOW SASH LIITING AND LOOKING APPLIANCE.

APPLICATION nun 510V. so, 1901.

901,680. Patented 001;.20, 1908.

S E /d, C i; 5/: v z 5 :36

INVENTOR, b FQMASEDQA CARTER UNIT T 5$ g am: OFFICE.

THOMAS EDGAR CARTER, OF AUCKLAND, Z'EALAN D.

winnorw-sesn Lrr'rme nn LOCKING APPLIANCE.

' To all whom it may concern: I

Be it known that I, 'THoMAs EDGAR OAR- TER, subject of the King of Great Britain, re- I siding at Auckland, in the Dominion of- New Zealand, have invented a new and useful Improvement. in Window Sash Lifting and ocking A pliances and I do hereby declare the f0 lowing to be a full, clear, and ex act description of the same.

This invention relates to means whereby spindle rojecting into the room, and is operated y a handle secured upon its end. Combined with the rack are antifriction rollers, which are mounted therein, and run on the face of the pulley stile. On the other edge of the sash, a similar roller is mounted at the bottom, and at the top end, and combined with each rollenis a flat spring that beiirs against the face of the adjacent pulley sti e.

Special means are provided whereby the Y pinion spindle may be preventedfrom turnmg so that the sash may be held at any height, and locked from being further opened or closed from the outside.

In the accompanying drawings, which illustrate the invention, Figure 1 1s a face view (partly in section) of a window sash and frame provided with the means constituting this invention. Fig. 2 is a detail front View of the means for locking the pinion s indle. Fig. 3 is a side-elevation of the frame or can rying the pinion and spindle, showing such the edge of a sash frame and having an ant1-.

arts in position and the. locking means. *ig. 4 is a face view of the upper end of the toothed rack attached to the window s'ash. Fig. 5 is a similar view of one of the antifriction rollers and springs attached to the other edge of the sash.

Specification of Letters Patent.

Application filed November 30, 1907. Serial No. 404,600.

Patented Oct. 20, 1908.

a is thesash, b, b, are the pulley stiles.

c is the toothed rack secured a'lon one edge of the sash. d, d, are the antifr ction rollers mounted in bearings formed at each end of this rack, and which are arranged so as to have their peri heries bearing upon the adjacent pulley stiles).

e is the toothed pinion that is mounted bn the spindle f. The spindle is carried in bearmanner that the pinion will pass through an opening in the stile b and its teeth engage the spindle projects in through. the front of the casing g, and to it is attached a handle it by means of which it may be turned. The

squared portion 3' and secured upon the front face of the casing g is a plate 7c which is so held as to be free to slide up and down thereon. This plate is formed with a slot m in its lower edge that is adapted to fit on to the squared portion of the spindle, so that when the plate lowered, the spindle will be prevented from turnin rollers are mounted in plates p in such a will engage with the adjacent stile b.

r are the spring plates secured to the plates p and each one of which is bowed outwslilrds, as shown, to bear against the :pulley st' e.

The window will be raised or lowered by rotating the spindle f, and may be held. and

slotted plate I: antifriction rol provide for the sash running freely, and to prevent any jamming or rattling thereof:

ver its squared portion. The

What I doclaim as my invention, and desire to secure by Letters Patent, .is,

In a window, a toothed rack secured along friction roller journaled in each end thereof ings formed in a metal casing 9 that is let into the front of the window frame in such a with the rack 0 upon the sash. The end of o, 0, are the antifriction rollerssec'ured upon the other edge of the sash. These manner that they will be free to rotate, and

inner end of this spindle is formed with .a Y

locked at,any1'position by dropping tire lers and springs will serve to engaging with the adjacent face of a pulley stile, a metal frame secured within the pulley stile, a spindle carried transversel n I such frame. and projecting beyond its out end. a squared portion upon such projecting end, a shding plate secured against the front face of the frame, and having a slot adapted to fit on to the squared portion of the s indle,

and a pinion mounted upon the spin 1e and engaging with therack on the sash, substantiellv as specified.

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

THOMAS EDGAR CARTER. Witnesses;

E. BROOKE-SMITH, E. F.-COURTNEY. 

